Well, everything appears just normal with the new code for steemit being tested, to prior to deployment on steemit.com. You can join the testing on https://steemitstage.com.
I logged in using my posting key. So my first test is basically this editor as well as posts and comments. I started out with a comment on 
- https://steemit.com/steemsongs/@ned/steemsongs#@surpassinggoogle/re-ned-steemsongs-20170805t055736534z
The only issue i had while making the above comment is; that i didn't know that my comment had already posted because the comment box upon which i was leaving my comment, kept on in loading mode non-stop. This was how it was for a long time:
After waiting for it too load for so long, my intention was to go back on (https://steemit.com/steemsongs/@ned/steemsongs), to leave my comment but upon getting to the thread, i saw that my comment was already posted from steemstage.com
So i now decided to go back on https://steemitstage.com/steemsongs/@ned/steemsongs, to try to reload the page, and i noticed that it still was doing that non-stop loading action as described above, while trying to publish my comments, however, when i scrolled down, i could see that my earlier comment which didn't seem to publish from steemitstage.com was right there:
Due to this, i wasn't able to tell much about how efficient steemitstage.com code is, with regards to publishing posts and performance in general, compared to steemit.com but ofcourse, i am here to test and relate my experience, so that 
Embedded videos played like normal as you can see:
video source/credit to: @ned/youtube
Everything has the same feel as steemit.com!
I am not sure about how to determine things like speed of caching etc based on this experience but perhaps, other steemians can try steemitstage.com and see. 
This is a test post, so let's publish it and see!
If you would like to give vote to my witness, it is pretty easy. Simply visit:
https://steemit.com/~witnesses Then type in "steemgigs" into the witness search box, like this:
Your Boy Terry
Join us on Steemgigs community on discord: https://discord.gg/wWrnSXK
Everyone has something to offer!